Dyn11 S22 11kv 24kv 33kv Three Phase Copper/Aluminum Winding 30-3000kva 50/60Hz Power Pad-Mounted Oil Transformer

Overview of Dyn11 S22 11kv 24kv 33kv Three Phase Copper/Aluminum Winding 30-3000kva 50/60Hz Power Pad-Mounted Oil Transformer

Dyn11 S22 11kv 24kv 33kv Three Phase Copper/Aluminum Winding 30-3000kva 50/60Hz Power Pad-Mounted Oil Transformer is an enclosed, ground-level electrical distribution transformer commonly used in underground (UG) power systems. It steps down primary high-voltage electricity (e.g., 15kV or 25kV) to a lower secondary voltage (e.g., 120/240V or 480V) for safe distribution to residential neighborhoods, commercial buildings, and industrial parks. Its robust, lockable steel enclosure makes it safe for public areas.

Features of Dyn11 S22 11kv 24kv 33kv Three Phase Copper/Aluminum Winding 30-3000kva 50/60Hz Power Pad-Mounted Oil Transformer

Ground-Level Enclosure: A locked, tamper-resistant, weatherproof steel cabinet that protects the internal components and ensures public safety.

Underground Cable Connections: Designed for easy connection to underground primary (high-voltage) and secondary (low-voltage) cables via compartments with built-in bushings.

Compartmentalization: Separate, isolated compartments for high-voltage and low-voltage components, enhancing safety during maintenance.

Ventilation: Designed with louvers or other ventilation systems to allow for proper heat dissipation from the transformer core and coils.

Lifting Lugs: Integrated lifting lugs for easy and safe installation and replacement using a crane or hoist.

Tamper-proof Hardware: Lockable doors with special bolts to prevent unauthorized access.

Fused Switches: Often includes fused disconnect switches for circuit protection and safe isolation.

Pad Foundation: Installed on a concrete pad (“pad-mounted”) to provide a stable, level base.

Specifications of Dyn11 S22 11kv 24kv 33kv Three Phase Copper/Aluminum Winding 30-3000kva 50/60Hz Power Pad-Mounted Oil Transformer

Our Dyn11 S22 pad-mounted oil transformer handles tough power jobs outdoors. It steps down high voltage for neighborhoods or businesses. You get three-phase power between 30 and 3000 kVA. Choose copper or aluminum windings based on your budget and needs. Copper lasts longer. Aluminum costs less. Both do the job well.

Voltage options cover 11kV, 24kV, and 33kV systems. This fits most grid requirements globally. The Dyn11 connection means delta primary and star secondary. This setup gives stable voltage output with a 30-degree phase shift. It protects sensitive equipment from harmonics.

Built to S22 efficiency standards, it cuts energy waste. Less heat means lower bills. The oil inside cools the core quietly. No noisy fans. The tank is tough steel. It resists weather, rust, and knocks. Mount it on concrete pads near buildings or streets.

It works on 50Hz or 60Hz power networks. No compatibility worries. Maintenance stays simple. Check oil levels yearly. Inspect bushings and connections. The design includes safety valves and pressure relief. These prevent leaks or bursts.

Sizes start small at 30 kVA for shops or farms. Larger 3000 kVA units power factories or housing blocks. Terminals are clearly marked. Wiring is straightforward. Grounding points are easy to access.

Tested under extreme conditions, it handles overloads briefly. Temperatures from -40°C to +45°C won’t stop it. Rain, snow, or dust cause no trouble. The unit ships ready for hookup. Just connect cables and energize.

Order your voltage and kVA rating. Specify winding material. We deliver fast. Install it quickly. Rely on it daily.

Applications of Dyn11 S22 11kv 24kv 33kv Three Phase Copper/Aluminum Winding 30-3000kva 50/60Hz Power Pad-Mounted Oil Transformer

These oil-cooled transformers step down medium voltage electricity for local distribution. They handle input voltages from 11kV up to 33kV. Output is the standard 400V/230V three-phase power businesses and neighborhoods need. Units come rated from 30kVA to 3000kVA. They work on both 50Hz and 60Hz power systems globally.

The Dyn11 or S22 vector groups ensure stable voltage output. This is critical for sensitive equipment. Windings use either copper or aluminum conductors. Copper offers better efficiency. Aluminum provides a cost-effective solution. Both materials ensure reliable, long-term operation.

These transformers are built for tough outdoor conditions. Their compact pad-mounted design saves space. They sit directly on concrete pads near points of use. This placement avoids expensive substation buildings. The welded steel tank resists corrosion. A durable finish protects against weather damage. Internal components are securely mounted. This prevents damage during shipping or installation.

Oil inside provides excellent cooling and insulation. This keeps the transformer running cooler. Cooler operation extends its working life. Internal protection mechanisms guard against overloads and faults. These features minimize downtime. Reduced downtime means lower costs.

These transformers power residential areas, schools, and hospitals. They supply factories, workshops, and shopping centers. They are essential for construction site power. They support renewable energy connections like solar farms. They serve water treatment plants and pump stations. Reliable power is vital for these applications. Safety is paramount. These units meet strict international safety standards.

Company Profile

PDDN Photoelectron Technology Co., Ltd. is one of the leading enterprises in power electronics technology and power products, which is fully involved in developing solar inverters， transformers, voltage regulators, distribution cabinets, thyristors， modules， diodes， heaters, and other electronic devices or semiconductors. We will be committed to providing users with high-quality, efficient products and considerate service.

It accepts payment via Credit Card, T/T, West Union, and Paypal. PDDN will ship the goods to customers overseas through FedEx, DHL, by sea, or by air. If you want high-quality Dyn11 S22 11kv 24kv 33kv Three Phase Copper/Aluminum Winding 30-3000kva 50/60Hz Power Pad-Mounted Oil Transformer, please send us inquiries; we will be here to help you.

Payment Methods

L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment

By sea, by air, by express, as customers request.

Storage Conditions

1) Store in a dry environment at room temperature.

2) Avoid damp and high temperature.

3) Use immediately after opening the inner packing bag.

5 FAQs of Dyn11 S22 11kv 24kv 33kv Three Phase Copper/Aluminum Winding 30-3000kva 50/60Hz Power Pad-Mounted Oil Transformer

What is this transformer?
This is a pad-mounted oil transformer. It steps down higher voltages for local power distribution. Think of it as a green box near streets or buildings. It handles 11kV, 24kV, or 33kV input. Output is standard low voltage. Sizes range from 30kVA to 3000kVA. It works on both 50Hz and 60Hz power systems.

What does “Dyn11” mean?
Dyn11 describes the transformer’s internal winding connection. The “D” means the high voltage winding connects in a delta pattern. The “yn” means the low voltage winding connects in a star pattern with a neutral point brought out. The “11” shows the low voltage lags the high voltage by 30 degrees. This connection is common. It offers good performance for distribution grids.

What voltage levels are available?
You can choose the primary (high) voltage. Options are 11kV, 24kV, or 33kV. This matches common distribution network voltages. The secondary (low) voltage is typically 400V or 415V for three-phase systems. Some versions offer 230V single-phase. Confirm the exact specs needed for your project.

Copper or Aluminum windings?
This transformer comes with either copper or aluminum windings. Copper windings conduct electricity better. They are smaller for the same power rating. This makes the transformer more compact. Copper generally handles overloads better. Aluminum windings cost less upfront. They are lighter. Both types are reliable if built correctly. Your choice depends on budget and space.

Where is this transformer used?
Its main job is in electrical distribution networks. You see it in suburban areas, housing estates, industrial parks, and commercial centers. It feeds power from the main grid to local transformers or directly to buildings. The pad-mounted design keeps it safe outdoors. Oil cooling efficiently handles the heat generated during operation. It’s built for reliable underground service connections.